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AXLE GAGE. No. 337,606. Patented Mer. 9, 1886.`

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WITNESSES INVENTOR ATTORNEYS.

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HECTOR MCQUARRY, OF ALLANDALE, ONTARIO, CANADA.

AXLE-GAGE.

SPECIFICATION forming part of Letters Patent No. 337,606, dated March 9,1886.

Application led December 5, 1885. Serial No. 184,816. (No model.)

.To all whom it may concern:

Be it known that I, HECTOR MCQUARRY, of Allandale, in the Province ofOntario and Dominion of Canada, have invented a new and ImprovedAxle-Gage, of which the following is a full, clear, and exactdescription.

The object of my invention is to provide certain new and usefulimprovements in the axlegage for which United States Letters Patent No.308,685 were issued to me on the 2d day of December, 1884:.

This invention relates to gages employed to determine the bend to begiven to an axle, so that the lower supportingspokes ofthe dished wheelturning thereon will be always plumb, and that said wheel may have therequired gather.7

The invention consists in the construction and combination ofthe variousparts of the axle-gage, as will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similarletters of reference indicatecorresponding parts in all the figures.

Figure l is a plan View of my improved axle-gage. Fig. 2 is alongitudinal elevation of the same. Fig. 3 is a detail plan view of thedish-rule. Fig. 4 is a cross-sectional view on the line v zr, Fig. 2.

The dish of a Wheel being measured by the ratio of the outwarddisplacement of the outer ends of the spokes beyond theinner ends to thelength of said spokes, the downward Vbend given to the axle at the endto cause the lower' spokes to be always plumb, said bend being equal tothe dish,is measured in the same terms.

In the drawings, A represents the body or base of the gage,which isprovided at one end with the upwardly-projecting head B, having the slotB formed through it lengthwise. In said slot the hub C2 of abracket-arm, C, is pivoted to swing by the pivot C', and saidbracket-arn1 is curved and extended downward, and is provided on itslower end with a fork, D, between the prongs of which the forked piece Eis pivoted, having V-shaped notches in the ends ot' its prongs F, toadapt said ends to fit on an axle and hold the piece E parallel with thesame. On the other end of the bar'A the sliding piece G is held bya set-Screw, H, and is provided with the downwardly-projeeting part J,n0tchedin'its lower end to fit the axle.

On the top of the bar A the plate K is held, which is termed thedish-rule, and is provided with the longitudinal central line, a,vertically in line with the pivot C and the notched end of J. At eachside of the. line a the parallel lines d are provided, and marked toindicate their respective distances from the line a.

In this case the lines are one-eighthv of an inch apart, and theirdistances measured down to form stops, which can strike the side edgesof the bar A.

rlhe spoke-rule L is divided at the swinging end into inches andfractions thereof, and the divisions are numbered to denote theirrespect-ive distances in inches from the center of the pivot O. l

On the bracket-arm the pointer O is formed nearly vertically in linewith the piece E, and which projects over the spoke-rule, having themark W, to which the pointer O normally points.' The index end of thepointer swings under a hook-arm, P, extending over the bar A, andprovided with gage-marks h h, with which a stud or projection, R, on thepointer can register, and which serve to indicate the forward gather ofthe axle-arm.

The clamp S, having the screw T, serves to lock the swinging end of thespoke-rule L in place.

The operation is as follows: The gage is placed on a perfectly-straightrod, and the spoke-rule L is placed with its divided edge in coincidencewith'the central line, a, of the dish-rule and locked in place by theclamppiece S, holding its curved end piece, M. If the instrument is inadjustment, the index O will point to the mark W,and the button, pin, orstud R will coincide with the central mark,

IOO

h. The gage is then adjusted for the dish of the wheelto be mounted onthe axle. If, for example, the wheel has one-half an inch dish intwentytwo inches of length ofspoke, the spoke-rule is moved outwarduntil the mark twenty-two thereon is fairl7 even with the line on thedish-rule marked as being one-halt' an inch from the central line, a, inthis case No. 4, and then the spoke-rule is locked in this position.Then the gage is placed on the side otthe axle whose bend is to bedetermined, the inner notched prong, F, resting againstthe axle-collar,and said inner prong being nearly vertically in line with the pivotC,the bar Ais supported on and above the main straight part ofthe axleand parallel therewith andthe notched piece E rests on and is parallelwith the axle-arm. If the pointer does not point to the mark XV on thespoke-rule, the axle must be heated and set in the usual manner untilwhen the gage is placed thereon the index or pointer O points to themark W.

To obtain the required gather the axle is set, so that when the gage isplaced thereon the stud R on the pointer O will coincide with theoutside gather-mark, h.

As the gage isa double-scale gage, it can be placed on the forward orrear side of the axle to set for dish and on the bottom or top to setfor gather, which is very advantageous when only one side of the axle isapproachable.

Having thus described my invention, what I claim,and desire to secure byLetters Patent, 1s-

l. In an axle-gage, the combination, with the bar A, ot' the slottedhead B on the same, and the bracket-arm C, pivoted in said head andprovided with the pointer O, extending over the barA, substantially asherein shown and described.

2. In an axle gage, the combination, with the bar A, of the slotted headB, the bracketarin C, pivoted in the saine, which arm C has the pointerO formed on one end and has the 4 other end forked, and of the forkednotched piece E, pivoted in the forked end of the arm C, su bstantiallyas herein shown and described.

8. In an axle gage, the combination, with the bar A, of the slotted headB, the bracket- 5o the bar A, and provided with a pointerswing- 6o ingabove the spoke-rule, substantially as herein shown and described.

5. In an axle gage, the combination, with the bar A, of the dish-rule Kon the same, the curved arm I?, extending over the top ol' 6 thespoke-rule and provided with the marks li, the spoke-rule L, pivoted toswing over the dish-rule, and ot' the bracket-arm C, pivoted on one endof the bar A and provided with the pointer O, havingthe projection orpin It, 7o

adjacent to the arm I?, substantially as herein shown and described.

6. In an axle-gage, the combination, with the base or body and thespoke-rule, of the dish-ruleK, having a longitudinal central line, 7 a,and longitudinal parallel lines d d at both sides ofthe said centralline, substantially as set forth.

HECTOR MCQUARRY. Vitnesses:

WILLIAM JOHN llIIDDLnToN, Jol-1N SWEENEY, Jr.

